Filtering device for treating domestic sewage

Abstract

The utility model discloses a filtering device for treating domestic sewage, which comprises a settling pond, a discharge port is arranged at the top end of the settling pond, a filtering component is arranged in the settling pond, the filtering component comprises a connecting frame fixedly connected to the top end of the settling pond, the connecting frame is arranged at the outer end of the discharge port, and the connecting frame is fixedly connected with the top end of the settling pond. The interior of the sedimentation tank and the interior of the connecting frame are both rotationally connected with connecting shafts, and a filter belt is arranged between the two connecting shafts in a sleeved mode. According to the filtering device for treating domestic sewage, sediments attached to the outer end of the filtering belt are driven by the rotating filtering belt to move towards the position of the discharge port, the sediments fall into the waste material pipe due to the gravity of the sediments, meanwhile, the filtering belt is inclined, water and the sediments can be effectively separated, the sediments in the sedimentation tank are continuously reduced through the filtering belt, and the filtering efficiency is improved. Filtering holes in the outer end of the filtering belt are prevented from being blocked, so that the sewage treatment effect of the sedimentation tank is improved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a filtering device for treating domestic sewage. Background Technique

[0002] Domestic wastewater refers to the washing water discharged in the daily life of residents. The wastewater treatment system can be divided into primary treatment, secondary treatment and advanced treatment. For the secondary treatment system, primary treatment is the pretreatment. The most commonly used secondary treatment is the biological treatment method, which can greatly remove the organic matter in the wastewater in the colloidal and dissolved states, making the wastewater meet the discharge standards. The secondary treatment requires the filtered sewage to be introduced into the sedimentation tank and chemical agents to be added to precipitate the suspended matter in the sewage and carry out sedimentation.

[0003] After chemical agents are added to the sewage in the sedimentation tank, a large amount of sediment will be generated. At this time, the sediment is filtered through the filter screen in the sedimentation tank. However, the sediment adheres to the outer end of the filter screen, resulting in the blockage of the filter screen. At the same time, some sediment has viscosity. Even if a cleaning device is used to clean the outer end of the filter screen, the cleaned sediment will still adhere to the outer end of the filter screen driven by the water flow, and the problem of filter screen blockage cannot be effectively solved.

[0004] Therefore, the utility model provides a filtering device for treating domestic sewage, which discharges the sediment from the inside of the sedimentation tank through a filter belt to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a filtering device for treating domestic sewage, which solves the above problems.

[0006] To achieve the above object, the utility model is realized through the following technical solutions: a filtering device for treating domestic sewage, including a sedimentation tank, a discharge port is opened at the top end of the sedimentation tank, a filtering component is arranged inside the sedimentation tank, the filtering component includes a connecting frame fixedly connected to the top end of the sedimentation tank, the connecting frame is arranged at the outer end of the discharge port, connecting shafts are rotatably connected inside both the sedimentation tank and the connecting frame, a filter belt is sleeved between the two connecting shafts, and filter holes are opened at the outer end of the filter belt.

[0007] Preferably, the filtering component further includes side clamping plates symmetrically and fixedly connected to the inner wall of the sedimentation tank, and both sides of the filter belt are arranged inside the side clamping plates.

[0008] Preferably, the filtering component further includes a blocking plate fixedly connected between the two side clamping plates, the blocking plate is fixedly connected to the bottom end of the sedimentation tank, a first servo motor is fixedly connected to the outer end of the connecting frame, and the output end of the first servo motor is fixedly connected to one of the connecting shafts.

[0009] Preferably, a waste pipe is fixedly connected inside the connecting frame. The middle part of the waste pipe is inclined. A scraping rod is fixedly connected to the bottom end of the feed pipe opening of the waste pipe. The scraping rod is arranged at the outer end of the filter belt. A conduit is fixedly connected to the top end of the waste pipe. A branch pipe is fixedly connected between the conduit and the waste pipe. A spray head is fixedly connected to the top end of the inner cavity of the waste pipe. The spray head is communicated with the conduit and the branch pipe, and the spray head is inclined.

[0010] Preferably, a rotating rod is rotatably connected inside the waste pipe. Cleaning bristles are fixedly connected to the outer end of the rotating rod. A protective shell is fixedly connected to the outer end of the waste pipe. A pulley is rotatably connected inside the protective shell. The pulley is fixedly connected to the rotating rod.

[0011] Preferably, a second servo motor is fixedly connected to the outer end of the protective shell. The output end of the second servo motor is fixedly connected to one of the pulleys. A transmission belt is sleeved between two adjacent pulleys. A liquid inlet pipe is fixedly connected to the outer end of the sedimentation tank. Liquid outlet pipes are symmetrically and fixedly connected to both sides of the sedimentation tank.

[0012] Beneficial effects

[0013] The utility model provides a filtering device for treating domestic sewage. Compared with the prior art, the following beneficial effects are achieved:

[0014] (1) In the filtering device for treating domestic sewage, the rotating filter belt drives the sediment attached to its outer end to move towards the discharge port. Due to the gravity of the sediment itself, the sediment falls into the waste pipe. At the same time, the filter belt is inclined, which can effectively separate water and sediment. By continuously reducing the sediment in the sedimentation tank through the filter belt, the phenomenon that the filter holes at the outer end of the filter belt are blocked is prevented, thereby improving the treatment effect of the sedimentation tank on sewage. Description of the drawings

[0015] Figure 1 is the three-dimensional external structure diagram of the utility model;

[0016] Figure 2 is the partial structure schematic diagram of the filtering component of the utility model;

[0017] Figure 3 is the internal structure schematic diagram of the waste pipe of the utility model;

[0018] Figure 4 is the connection structure schematic diagram of the pulley and the transmission belt of the utility model.

[0019] In the figure: 1, sedimentation tank; 2, discharge port; 3, filtration component; 301, connecting frame; 302, connecting shaft; 303, filter belt; 304, filter holes; 305, side clamping plates; 306, baffle; 307, first servo motor; 4, waste pipe; 5, scraping rod; 6, conduit; 7, branch pipe; 8, spray head; 9, rotating rod; 10, cleaning bristles; 11, protective shell; 12, pulley; 13, drive belt; 14, second servo motor; 15, liquid inlet pipe; 16, liquid outlet pipe. Specific embodiments

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1:

[0022] Please refer to Figure 1-2 , a filtration device for treating domestic sewage, including a sedimentation tank 1. A discharge port 2 is opened at the top of the sedimentation tank 1. A filtration component 3 is arranged inside the sedimentation tank 1. The filtration component 3 includes a connecting frame 301 fixedly connected to the top of the sedimentation tank 1. The connecting frame 301 is arranged at the outer end of the discharge port 2. Connecting shafts 302 are rotatably connected inside both the sedimentation tank 1 and the connecting frame 301. A filter belt 303 is sleeved between the two connecting shafts 302. Filter holes 304 are opened at the outer end of the filter belt 303. The purpose of this setting is that the rotating filter belt 303 can separate water from sediment. At the same time, the inclined filter belt 303 can transport the sediment to the position of the discharge port 2 and drop by the gravity of the sediment itself, reducing the sediment in the sedimentation tank 1 and preventing the sediment from blocking the filter holes 304 at the outer end of the filter belt 303, thereby improving the treatment effect and speed of the sewage in the sedimentation tank 1.

[0023] Preferably, the filtration component 3 further includes side clamping plates 305 symmetrically and fixedly connected to the inner wall of the sedimentation tank 1. Both sides of the filter belt 303 are arranged inside the side clamping plates 305. The purpose of this setting is that the arranged side clamping plates 305 wrap the filter belt 303 from both sides to prevent sewage from discharging from both sides of the filter belt 303 and affecting the sewage treatment effect.

[0024] Preferably, the filtering component 3 further includes a baffle 306 fixedly connected between the two side clamping plates 305. The baffle 306 is fixedly connected to the bottom end of the sedimentation tank 1. The outer end of the connecting frame 301 is fixedly connected with a first servo motor 307, and the output end of the first servo motor 307 is fixedly connected to one of the connecting shafts 302. The purpose of this setting is that the provided baffle 306 prevents sewage from directly discharging from the bottom of the filter belt 303.

[0025] In this embodiment, after the sewage in the sedimentation tank 1 is precipitated by chemical agents and other means, the first servo motor 307 drives the filter belt 303 at the outer end of the connecting shaft 302 to rotate. The inclined filter belt 303 conveys the sediment adsorbed on its outer end to the discharge port 2 position at the top of the sedimentation tank 1. At the same time, water falls into the sedimentation tank 1 through the filter holes 304 at the outer end of the filter belt 303. Due to its own weight, the sediment moves to the position of the connecting frame 301 and drops. Through the movable filter belt 303, the sediment at the outer end of the filter belt 303 is cleaned at the same time, effectively preventing the filter holes 304 at the outer end of the filter belt 303 from being blocked, which affects the filtering effect of the filter belt 303 on sewage.

[0026] Embodiment Two:

[0027] Please refer to Figure 1-4 , on the basis of Embodiment One, this embodiment provides a technical solution for a filtering device for treating domestic sewage: A waste pipe 4 is fixedly connected inside the connecting frame 301. The middle part of the waste pipe 4 is inclined. The bottom end of the feed pipe orifice of the waste pipe 4 is fixedly connected with a scraping rod 5. The scraping rod 5 is arranged at the outer end of the filter belt 303. The top end of the waste pipe 4 is fixedly connected with a conduit 6. A branch pipe 7 is fixedly connected between the conduit 6 and the waste pipe 4. The top end of the inner cavity of the waste pipe 4 is fixedly connected with a spray head 8. The spray head 8 is communicated with the conduit 6 and the branch pipe 7. The spray head 8 is inclined. The purpose of this setting is that the provided scraping rod 5 cleans the outer end of the filter belt 303, can effectively scrape off the viscous sediment attached to the outer end of the filter belt 303, and at the same time avoid the blockage of the filter holes 304. The sediment drops into the waste pipe 4. The provided spray head 8 flushes the sediment into the interior of the waste pipe 4 and discharges it through water pressure, preventing the sediment from accumulating at the orifice position of the waste pipe 4.

[0028] Preferably, a rotating rod 9 is rotatably connected inside the waste pipe 4. A cleaning brush 10 is fixedly connected to the outer end of the rotating rod 9. A protective shell 11 is fixedly connected to the outer end of the waste pipe 4. A pulley 12 is rotatably connected inside the protective shell 11. The pulley 12 is fixedly connected to the rotating rod 9. The purpose of this setting is that the provided cleaning brush 10 cleans the inner wall of the waste pipe 4, preventing the viscous sediment from accumulating on the inner wall of the waste pipe 4 and causing the blockage of the waste pipe 4.

[0029] Preferably, a second servo motor 14 is fixedly connected to the outer end of the protective shell 11. The output end of the second servo motor 14 is fixedly connected to one of the pulleys 12. A transmission belt 13 is sleeved between two adjacent pulleys 12. An inlet pipe 15 is fixedly connected to the outer end of the sedimentation tank 1. Liquid outlet pipes 16 are symmetrically and fixedly connected to both sides of the sedimentation tank 1. The purpose of this setting is that the arranged transmission belt 13 can drive the rotation of multiple pulleys 12 connected to the pulley 12, so that the cleaning brush hairs 10 at the outer end of the rotating rod 9 rotate to clean the inside of the waste pipe 4.

[0030] In this embodiment, the sediment in the sedimentation tank 1 enters the waste pipe 4 through the transmission of the filter belt 303. At the same time, water is introduced into the conduit 6, and the water sprays out from the inclined nozzles 8 through the branch pipes 7, so that the sediment at the position of the mouth of the waste pipe 4 enters the inclined part of the waste pipe 4. At the same time, the second servo motor 14 drives the pulley 12 connected by the transmission belt 13 to rotate, so that the cleaning brush hairs 10 at the outer end of the rotating rod 9 rotate inside the waste pipe 4, and then clean the sediment attached to the inner wall of the waste pipe 4 to prevent the waste pipe 4 from being blocked, and the sediment is discharged from one end of the waste pipe 4 again.

[0031] At the same time, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for treating domestic sewage, comprising a sedimentation tank (1), characterized in that: The top of the sedimentation tank (1) is provided with a discharge port (2), and a filter assembly (3) is provided inside the sedimentation tank (1). The filter assembly (3) comprises a connecting frame (301) fixedly connected to the top of the sedimentation tank (1), and the connecting frame (301) is arranged at the outer end of the discharge port (2). The sedimentation tank (1) and the connecting frame (301) are both rotatably connected with a connecting shaft (302) inside, and a filter belt (303) is sleeved between the two connecting shafts (302), and a filter hole (304) is provided at the outer end of the filter belt (303).

2. A filtering device for treating domestic sewage according to claim 1, characterized in that: The filter assembly (3) further comprises a side clamping plate (305) symmetrically fixedly connected to the inner wall of the sedimentation tank (1), and the two sides of the filter belt (303) are arranged inside the side clamping plate (305).

3. A filtering device for treating domestic sewage according to claim 2, characterized in that: The filter assembly (3) further comprises a baffle (306) fixedly connected between the two side clamping plates (305), wherein the baffle (306) is fixedly connected to the bottom end of the sedimentation tank (1), and a first servo motor (307) is fixedly connected to the outer end of the connecting frame (301), and an output end of the first servo motor (307) is fixedly connected to one of the connecting shafts (302).

4. A filtering device for treating domestic sewage according to claim 1, characterized in that: A waste pipe (4) is fixedly connected to the interior of the connecting frame (301), the middle portion of the waste pipe (4) is inclined, a scraper rod (5) is fixedly connected to the bottom end of the feed pipe opening of the waste pipe (4), the scraper rod (5) is arranged at the outer end of the filter belt (303), a conduit (6) is fixedly connected to the top end of the waste pipe (4), a branch pipe (7) is fixedly connected between the conduit (6) and the waste pipe (4), a nozzle (8) is fixedly connected to the top end of the inner cavity of the waste pipe (4), the nozzle (8) is in conduction with the conduit (6) and the branch pipe (7), and the nozzle (8) is inclined.

5. A filtering device for treating domestic sewage according to claim 4, characterized in that: The waste pipe (4) is rotatably connected to a rotating rod (9) inside, the outer end of the rotating rod (9) is fixedly connected to a cleaning brush (10), the outer end of the waste pipe (4) is fixedly connected to a protective shell (11), the interior of the protective shell (11) is rotatably connected to a pulley (12), and the pulley (12) is fixedly connected to the rotating rod (9).

6. A filtering device for treating domestic sewage according to claim 5, characterized in that: A second servo motor (14) is fixedly connected to the outer end of the protective shell (11), an output end of the second servo motor (14) is fixedly connected to one of the pulleys (12), a transmission belt (13) is sleeved between two adjacent pulleys (12), a liquid inlet pipe (15) is fixedly connected to the outer end of the sedimentation tank (1), and liquid outlet pipes (16) are symmetrically fixedly connected to both sides of the sedimentation tank (1).

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